<template>
  <div class="departments-container">
    <div class="app-container">
      <!-- 卡片组件 -->
      <el-card class="box-card">
        <!-- 使用 Tabs 组件完成标签页布局 -->
        <el-tabs v-model="activeName">
          <el-tab-pane label="组织架构" name="first" class="tab-pane">
            <!-- 使用 Layout 布局绘制头部区域 -->
            <el-row type="flex" justify="space-between" align="middle" class="department-header">
              <el-col :span="20">
                <i class="el-icon-s-home" />
                <span class="company">江苏传智播客教育科技股份有限公司</span>
              </el-col>
              <el-col :span="4">
                <el-row type="flex" justify="end">
                  <el-col>负责人</el-col>
                  <el-col>
                    <el-dropdown>
                      <span class="el-dropdown-link">
                        操作<i class="el-icon-arrow-down el-icon--right" />
                      </span>
                      <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item>添加子部门</el-dropdown-item>
                      </el-dropdown-menu>
                    </el-dropdown>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
            <el-tree class="departments-tree" :data="treeData" :props="defaultProps" :default-expand-all="true">
              <template slot-scope="{ data }">
                <el-row type="flex" justify="space-between" style="height: 50px; width: 100%;" align="middle">
                  <el-col :span="20">
                    <span>{{ data.name }}</span>
                  </el-col>
                  <el-col :span="4">
                    <el-row type="flex" justify="end">
                      <el-col>{{ data.manager }}</el-col>
                      <el-col>
                        <el-dropdown>
                          <span class="el-dropdown-link">
                            操作<i class="el-icon-arrow-down el-icon--right" />
                          </span>
                          <el-dropdown-menu slot="dropdown">
                            <el-dropdown-item @click.native.stop="addDeptFn(data.id)">添加子部门</el-dropdown-item>
                            <el-dropdown-item @click.native.stop="editDeptFn(data.id)">编辑部门</el-dropdown-item>
                            <el-dropdown-item v-if="data && !data.children" @click.native.stop="delDeptFn(data.id)">删除部门</el-dropdown-item>
                          </el-dropdown-menu>
                        </el-dropdown>
                      </el-col>
                    </el-row>
                  </el-col>
                </el-row>
              </template>
            </el-tree>
          </el-tab-pane>
        </el-tabs>
      </el-card>
      <!-- 添加或编辑弹框 -->
      <el-dialog
        :title="isEdit ? '编辑子部门' : '添加子部门'"
        :visible.sync="showDialog"
        :close-on-click-modal="false"
        :close-on-press-escape="false"
      >
        <!-- 添加子组件弹层 -->
        <deptDialog
          v-if="showDialog"
          ref="refDeptDialog"
          :parentid="pid"
          :edit="isEdit"
          :orlist="originList"
          @update-depart="updateDepartFn"
          @close="updateDepartFn"
        />

        <span slot="footer" class="dialog-footer">
          <el-button @click="showDialog = false">取 消</el-button>
          <el-button type="primary" @click="showDialog = false">确 定</el-button>
        </span>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getDepartments, delDepartment } from '@/api/departments'
import { tranListToTreeData } from '@/utils'
import deptDialog from './deptDialog'
export default {
  name: 'Departments',
  components: {
    deptDialog
  },
  data() {
    return {
      activeName: 'first', // 被激活的 Tab 标签页
      treeData: [],
      // 定义结构显示
      showDialog: false, // 控制添加或编辑弹框展示
      defaultProps: {
        children: 'children',
        label: 'name'
      },
      pid: '',
      isEdit: false
    }
  },
  created() {
  // 调用获取组织架构数据的方法
    this.getDepartments()
  },
  methods: {
  // 组织架构数据的获取方法
    async getDepartments() {
      const res = await getDepartments()
      // 根据后端返回的状态码进行错误提示
      if (!res.success) return this.$message.error(res.message)

      // 格式化需要传递给子组件的数据
      this.originList = res.data.depts.map(item => (
        {
          id: item.id,
          code: item.code,
          pid: item.pid,
          name: item.name
        }
      ))
      // 将获取到的数据进行赋值
      // this.treeData = res.data.depts
      this.treeData = tranListToTreeData(res.data.depts, '')
    },
    // 关闭弹层
    updateDepartFn() {
      this.showDialog = false
      // 重新获取数据
      this.getDepartments()
    },
    addDeptFn(id) { // 添加部门
      this.pid = id
      this.showDialog = true
      this.isEdit = false
    },
    editDeptFn(id) { // 编辑部门
      this.pid = id
      this.showDialog = true
      this.isEdit = true
    },
    async  delDeptFn(id) { // 删除部门
      // 显示删除确认消息对话框
      const delRes = await this.$confirm('此操作将永久删除部门, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      // 如果返回的结果是 cancel 说明用户取消了删除
      if (delRes === 'cancel') return this.$message('您取消了删除')

      // 调用删除接口
      const delDepartRes = await delDepartment(id)
      // 根据状态码查看是否删除成功
      if (!delDepartRes.success) return this.$message.error(delDepartRes.message)
      // 删除后需要重新获取当前页面数据
      this.getDepartments()
    }
  }
}
</script>

<style lang="scss" scoped>
.box-card {
  padding: 10px 30px;
  .departments-tree {
  margin: 12px 0px;
}
.el-tree-node__content {
  height: 30px !important;
  font-size: 14px !important;
}
}

.tab-pane {
  padding: 20px 80px;

  .company {
    margin-left: 12px;
    font-weight: bold;
    font-size: 14px;
  }

  .department-header {
    height: 50px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ccc;
  }
}
</style>
